Truck-brake.



PATBNTED JUNE 18, 1907.

E. H. SLAYBAUGH.

TRUCK BRAKE.

APPLIGATION FILED AUG.13. 190e.

m'fnes s es nl: Nonni: Frr: ws ca UNITED STATES PATENT OFFICE.

ELI H. SLAYBAUGH, OF ALLIANCE, OHIO, ASSIGNOR OF ONE-HALF TO HARRY B.GARDNER, OF ALLIANCE, OHIO.

TRUCK-BRAKE.

Specification of Letters Patent.

Patented June 18, 1907.

Application filed August 13,1906. Serial No. 330,295.

.T0 all whom it may con/cern:

Be it known that I, ELI H. SLAYBAUGH, a citizen of the United States,residing at Alliance, in the county of Mahoning and State of Ohio, haveinvented a new and useful Improvement in Truck-Brakes, of which thefollowing is a specification.

The invention relates to trucks of the character generally used atrailroad stations and other similar places where baggage and expresspackages are handled and the object of the improvement is to provide abrake which can be set and locked by the handle of the truck when it israised to a vertical position, but which is inoperative when the handleis in all other positions. This object is attained by the construction,mechanism and arrangement illustrated in the accompanying drawing, inwhich- Figure 1 is a side elevation, partly in section, of a truckshowing the handle in vertical position, and the brake set and locked;Fig. 2, a plan view of the truck showing parts in the same relation withthe forward part of the platform broken away to disclose details of thebrake; Fig. 3, a detached perspective view of the brake beam withattached parts; and Fig. 4, a detached perspective view showing theratchet plate.

Similar numerals refer to similar parts throughout the drawing.

The forward end of the platform l of the truck rests on the usualtransverse body bolster 2, which in turn rests on the transverse truckbolster 3 with the fifth wheel or turn table 4 intervening, these partsbeing connected and held together in the ordinary manner by means of theking bolt 5. The truck bolster is formed or attached on the axle 6, onthe ends of which the forward wheels are journaled, in the usual manner.The brake brackets 7 are formed or attached, one on each side of themedian line, on the forward side of the truck bolster and terminate inthe longitudinally-disposed bars or guides S, which may be provided atthe forward end with the heads 9 preferably in the form of an adjustablenut, as shown, and at an interval from the end with the shoulder formingcollars 10, preferably the adjustable nuts, as shown. j

The brake beam 11 is mounted on the guides 8, the same being passedthrough suitable apertures in the beam, whereby the same is adapted tobe moved or to slide directly forward and backward on the guides; andthe springs 12 are preferably provided on the beam and are adapted tobear against the shoulder-nut of the guide whereby the beam is normallypressed and held forward against the heads thereof, in which normalrelation of the parts the brake shoes are located adjacent to thewheels.

The handle bracket 13 is formed or attached on the forward side of theaxle and the truck bolster, and the ordinary tongue or handle of thetruck is pivoted as at 14 to this bracket so as to have a verticallyoscillating movement. The butting bracket 15 is preferably provided onthe truck handle, and also the spring resisted latch 16 having theratchet detcnt 17 thereon, is preferably pivoted to the truck handle,iand the detent is adapted to engage with the respective teeth of theratchet plate 18, formed or located on the under side of the forward endof the platform.

The parts thus described are so proportioned and arranged that when thetruck handle is brought to or near the vertical position the buttingbracket impinges the brake beam and pushes it directly backward and thuspresses the brake shoes against the pcripheries of the adjacent wheels,and the brake thus set is automatically locked by the engagement of theratchet detent with the teeth of the ratchet plate. After which, byreleasing thc handle latch, the handle is free to drop forward, and thebrake shoes are automatically freed from their contact with the wheelsby the action of the springs, which forces the brake beam forward on itsguides.

It will be noted that by the braking and locking devices thus described,the brake shoes are free from any contact with the wheels when the truckhandle is in all positions excepting at or near the vertical, so thatthe truck may be moved aboutv and handled freely until it is desired tostop and hold the same in a particular position, whereupon it is onlynecessary to raise the truck handle upward, preferably with some vigoror force, and when it arrives at or near the vertical position the brakeis set and locked substantially instantaneously with the truck handlepointing directly upward in a position to permit free access around theend of the truck;

IOO

and likewise, the brake is released substantially instantaneously justas soon as the truck handle is moved away from its vertical position.And it is evident that the particular locking device shown and describedand the particular means shown and described for movably mounting thebrake beam and the handle are not essential features of the invention.

What I claim as my invention, and desire to secure by Letters Patent,is`

l. In a truck, an axle with wheels, guides on the axle with a springcontrolled brake beam slidably mounted thereon and having shoes normallyadjacent to the wheelsJ a handle pivoted to the axle adapted whenapproximately in a vertical position to impinge the beam to bring theshoes against the Wheels, and means for locking the parts in thisrelation.

2. In a truck, an axle with wheels, a spring controlled brake-beammovably mounted on the axle and having shoes normally adjacent to thewheels, an oscillatable handle connected with the axle and adapted whenapproximately in a vertical position to impinge the A beam to bring theshoes against the wheels, and means for locking the parts in thisrelation.

In testimony whereoic I have signed my name to this specication in thepresence of two subscribing witnesses.

ELI H. SLAYBAUGH.

In presence 0i" J. F. HOGAN, W. E. CROFT.

